ES无纺布无硅亲水整理剂研究-《现代纺织技术》(2019年2期).docx

龙源版权所有 ES无纺布无硅亲水整理剂研究作者：蔡凌云 彭丽 郑旭明来源：《现代纺织技术》2019年第02期 摘要：为了赋予疏水性ES无纺布多次亲水性能，采用多组分无硅表面活性剂的复配方法对ES无纺布进行亲水改性。研究了异构十三烷醇聚氧乙烯醚（Lexxico醇醚）和直链十三烷醇聚氧乙烯醚的分子结构与溶液表面张力、在PE薄膜上的动态接触角和被其处理后ES无纺布多次亲水性的关系，优化了一系列亲水整理剂配方。结果表明，Lexxico醇醚在PE薄膜上的润湿铺展能力明显强于直链脂肪醇醚，并具有较好的亲水性能。以Lexxico醇醚为基础复配而成的无硅亲水整理剂具有良好的综合性能，5次透水时间都在5 s内，反渗量为0.11 g，比电阻小于109 Ω·cm。 关键词：ES无纺布;多次亲水;接触角;十三碳醇醚 中图分类号：TS195.67 文献标志码：A 文章编号：1009-265X（2019）02-0064-05 Abstract：In this paper， the hydrophilic modification of ES non-woven fabric was carried out by using multi-component silicon-free surfactants， in order to endow the hydrophobic ES non-woven fabric with multi-time hydrophilic properties. The relationship among molecular structure and surface tension of iso-tridecanol polyoxyethylene ether （Lexxico alcohol ether） and linear-chain tridecyl alcohol polyoxyethylene ether as well as the dynamic contact angle and the hydrophilicity of ES nonwovens treated was studied， and a series of hydrophilic finishing formula were optimized. The results showed that the wetting and spreading ability of Lexxico alcohol ether on PE film was obviously stronger than that of straight-chain fatty alcohol polyoxyethylene ether， and Lexxico alcohol ether owned good hydrophilic performance. The silicon-free hydrophilic finishing formula based on Lexxico alcohol ether had good comprehensive properties： the penetration time of 5 times was within 5 s， the amount of back infiltration was 0.11 g， and surface specific resistance was less than 109 Ω·cm. Key words：ES non-woven fabric; multi-time hydrophilicity; contact angle; tridecyl alcohol polyoxyethylene ether ES纖维[1]是日本智索公司开发的一种聚烯烃系纤维。ES纤维无纺布柔软、舒适、透气，对皮肤无刺激等[2-3]，是婴儿纸尿裤、成人尿不湿等卫生用品的舒适面层材料[4]，起到防止吸水材料与皮肤的直接接触而增加舒适性的作用。同时，ES纤维材料结晶度高，聚丙烯/聚乙烯大分子结构中缺乏亲水基团，属疏水材料[5]，尿液等体液难以快速穿透。因此，需要对其进行亲水整理以获得持久的亲水效果和达到增加尿布的使用时间这一目的。 聚烯烃类无纺布亲水整理剂的研发经历了从具有单次亲水到多次亲水的发展过程。20世纪90年代Schmalz[6]发明了含硅亲水整理剂，整理聚烯烃无纺布后单次透水时间小于2 s。Husmann等[7]、Kraus等[8]和Mathis[9]分别研发了一种含阳离子表面活性剂的整理剂，整理后聚酯无纺布的5次透水时间在5 s内，初步实现了多次亲水整理效果。国内研究起步较晚，张